我想计算kubernetes集群中所有pod的cpu使用情况.我在prometheus中发现了两个指标可能很有用:
container_cpu_usage_seconds_total: Cumulative cpu time consumed per cpu in seconds.
process_cpu_seconds_total: Total user and system CPU time spent in seconds.
Cpu Usage of all pods = increment per second of sum(container_cpu_usage_seconds_total{id="/"})/increment per second of sum(process_cpu_seconds_total)
但是,我发现每秒的增量都container_cpu_usage{id="/"}大于增量sum(process_cpu_seconds_total).因此使用量可能大于1 ...